If you're using 10.5(?) or earlier open System Preferences/ Sharing then select Firewall from the option and under the Firewall-Off/On option select Stop if it's already on.
If you're using 10.6 or above then open System Preferences/ Security select the Firewall option and select Stop.
The Mac, running any version of OS X, has a built-in firewall that is sufficient. In Leopard, the firewall is located in the Security pane of System Preferences.
Mac actually hasn't got a firewall like Win. You need a special firewall software. For example I'm using ProteMac Netmine. http://www.protemac.com/netmine/
How do you set up sims life stories on a mac?
Yes.
So first you have to
Sadly you can't which stinks
A strong, properly configured firewall eliminates viruses. Trojans and viruses sneak in and harm your computer when the firewall isn't set up properly.
buy a pc thats how
For a dial-up connection on a Mac you would use the internal modem or an external modem connected via USB.
Use the hamachi server.
Windows can be installed and run on any Mac (and Ironically windows 7 runs better on a mac than on a PC due to how the graphics are set up)
Nintendo set up a no-hacking firewall.